6840053220 has 384 divisors, whose sum is σ = 26150326272. Its totient is φ = 1289779200.

The previous prime is 6840053203. The next prime is 6840053239. The reversal of 6840053220 is 223500486.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3662727 + ... + 3664593.

It is an arithmetic number, because the mean of its divisors is an integer number (68099808).

Almost surely, 2^6840053220 is an apocalyptic number.

6840053220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6840053220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13075163136).

6840053220 is an abundant number, since it is smaller than the sum of its proper divisors (19310273052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6840053220 is a wasteful number, since it uses less digits than its factorization.

6840053220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971 (or 1969 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 6840053220 is about 82704.6142606324. The cubic root of 6840053220 is about 1898.2489148165.

The spelling of 6840053220 in words is "six billion, eight hundred forty million, fifty-three thousand, two hundred twenty".